/**
 * Shiva Public School - Static Website Styles
 * A clean, responsive stylesheet for the school website
 * 
 * Table of Contents:
 * 1. CSS Variables & Reset
 * 2. Typography
 * 3. Layout Components
 * 4. Header & Navigation
 * 5. Hero Section
 * 6. Sections (About, Classes, etc.)
 * 7. Cards & Components
 * 8. Forms
 * 9. Footer
 * 10. Utilities
 * 11. Animations
 * 12. Responsive Styles
 */

/* ==========================================================================
   1. CSS Variables & Reset
   ========================================================================== */

:root {
  /* Primary Colors - School Blue */
  --primary: 217 91% 35%;
  --primary-foreground: 0 0% 100%;
  --primary-light: 217 91% 45%;
  --primary-dark: 217 91% 25%;
  
  /* Secondary Colors - Warm Orange */
  --secondary: 25 95% 53%;
  --secondary-foreground: 0 0% 100%;
  --secondary-light: 25 95% 63%;
  
  /* Background & Foreground */
  --background: 0 0% 100%;
  --foreground: 222 47% 11%;
  
  /* Muted Colors */
  --muted: 210 40% 96%;
  --muted-foreground: 215 16% 47%;
  
  /* Accent */
  --accent: 210 40% 96%;
  --accent-foreground: 222 47% 11%;
  
  /* Border & Input */
  --border: 214 32% 91%;
  --input: 214 32% 91%;
  --ring: 217 91% 35%;
  
  /* Card */
  --card: 0 0% 100%;
  --card-foreground: 222 47% 11%;
  
  /* Destructive */
  --destructive: 0 84% 60%;
  --destructive-foreground: 0 0% 100%;
  
  /* Radius */
  --radius: 0.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Poppins', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: hsl(var(--foreground));
  background-color: hsl(var(--background));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ==========================================================================
   2. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: hsl(var(--foreground));
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
}

.text-primary {
  color: hsl(var(--primary));
}

.text-secondary {
  color: hsl(var(--secondary));
}

.text-muted {
  color: hsl(var(--muted-foreground));
}

.text-white {
  color: white;
}

.text-center {
  text-align: center;
}

/* ==========================================================================
   3. Layout Components
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: hsl(var(--muted));
}

.section-primary {
  background-color: hsl(var(--primary));
  color: white;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

/* ==========================================================================
   4. Header & Navigation
   ========================================================================== */

/* Top Header Bar */
.top-header {
  background-color: hsl(var(--primary));
  color: white;
  padding: 0.5rem 0;
  font-size: 0.875rem;
}

.top-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-header-contact {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.top-header-contact a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: opacity 0.2s;
}

.top-header-contact a:hover {
  opacity: 0.8;
}

.top-header-social {
  display: flex;
  gap: 1rem;
}

.top-header-social a {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: background-color 0.2s;
}

.top-header-social a:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Main Navigation */
.main-nav {
  background-color: white;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
}

.main-nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--primary-light)));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  color: hsl(var(--primary));
}

.nav-menu {
  display: flex;
  gap: 0.5rem;
}

.nav-link {
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 500;
  transition: all 0.2s;
  color: hsl(var(--foreground));
}

.nav-link:hover {
  background-color: hsl(var(--muted));
  color: hsl(var(--primary));
}

.nav-link.active {
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.nav-cta {
  margin-left: 1rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 1.5rem;
  height: 2px;
  background-color: hsl(var(--foreground));
  margin: 5px 0;
  transition: all 0.3s;
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: white;
  z-index: 200;
  padding: 2rem;
  flex-direction: column;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.mobile-nav-close {
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-links a {
  padding: 1rem;
  font-size: 1.125rem;
  border-radius: var(--radius);
  transition: background-color 0.2s;
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
  background-color: hsl(var(--muted));
  color: hsl(var(--primary));
}

/* ==========================================================================
   5. Hero Section
   ========================================================================== */

.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background-color: hsl(var(--primary) / 0.5);
}

.hero-content {
  position: relative;
  z-index: 10;
  color: white;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(255, 255, 255, 0.15);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: white;
}

.hero-description {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Page Header (for inner pages) */
.page-header {
  background-color: hsl(var(--primary));
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.page-header h1 {
  color: white;
  margin-bottom: 1rem;
}

.page-header p {
  opacity: 0.9;
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   6. Sections
   ========================================================================== */

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-subtitle {
  display: inline-block;
  color: hsl(var(--primary));
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: hsl(var(--foreground));
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-content h2 {
  margin-bottom: 1rem;
}

.about-content p {
  color: hsl(var(--muted-foreground));
  margin-bottom: 1.5rem;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.about-value {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.about-value-icon {
  width: 2.5rem;
  height: 2.5rem;
  background-color: hsl(var(--primary) / 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: hsl(var(--primary));
  flex-shrink: 0;
}

.about-value h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.about-value p {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin: 0;
}

.about-images {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.about-images img {
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* Why Us Section */
.why-us-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-us-card {
  background-color: white;
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.why-us-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.why-us-icon {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--primary-light)));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: white;
}

.why-us-card h3 {
  margin-bottom: 0.75rem;
}

.why-us-card p {
  color: hsl(var(--muted-foreground));
  font-size: 0.9rem;
  margin: 0;
}

/* Classes Section */
.classes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.class-card {
  background-color: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

.class-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.class-card-header {
  padding: 1.5rem;
  color: white;
}

.class-card-header.nursery {
  background: linear-gradient(135deg, #ec4899, #f472b6);
}

.class-card-header.lkg-ukg {
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--primary-light)));
}

.class-card-header.primary {
  background: linear-gradient(135deg, #10b981, #34d399);
}

.class-card-header.middle {
  background: linear-gradient(135deg, hsl(var(--secondary)), hsl(var(--secondary-light)));
}

.class-card-icon {
  width: 3rem;
  height: 3rem;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.class-card-header h3 {
  color: white;
  margin-bottom: 0.25rem;
}

.class-card-age {
  font-size: 0.875rem;
  opacity: 0.9;
}

.class-card-body {
  padding: 1.5rem;
}

.class-card-body p {
  color: hsl(var(--muted-foreground));
  margin: 0;
}

/* Gallery Section */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.3s;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay span {
  color: white;
  font-weight: 500;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.9);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 3rem;
  height: 3rem;
  background-color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

.lightbox-close:hover {
  background-color: hsl(var(--muted));
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info h3 {
  margin-bottom: 1.5rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
}

.contact-icon {
  width: 3rem;
  height: 3rem;
  background-color: hsl(var(--primary) / 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: hsl(var(--primary));
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-item p {
  color: hsl(var(--muted-foreground));
  margin: 0;
  font-size: 0.9rem;
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #25D366;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 500;
  margin-top: 1.5rem;
  transition: background-color 0.2s;
}

.whatsapp-btn:hover {
  background-color: #20bd5a;
}

.contact-map {
  border-radius: var(--radius);
  overflow: hidden;
  height: 400px;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ==========================================================================
   7. Cards & Components
   ========================================================================== */

.card {
  background-color: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-body {
  padding: 1.5rem;
}

/* ==========================================================================
   8. Forms
   ========================================================================== */

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: hsl(var(--foreground));
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  background-color: white;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  color: hsl(var(--destructive));
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

/* ==========================================================================
   9. Footer
   ========================================================================== */

.footer {
  background-color: hsl(var(--foreground));
  color: white;
  padding-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
}

.footer-brand .logo-text {
  color: white;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin-top: 1rem;
  font-size: 0.9rem;
}

.footer h4 {
  color: white;
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: white;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}

.footer-bottom-links a:hover {
  color: white;
}

/* ==========================================================================
   10. Utilities
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  font-size: 1rem;
  border-radius: var(--radius);
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: hsl(var(--primary));
  color: white;
}

.btn-primary:hover {
  background-color: hsl(var(--primary-dark));
}

.btn-secondary {
  background-color: hsl(var(--secondary));
  color: white;
}

.btn-secondary:hover {
  background-color: hsl(var(--secondary-light));
}

.btn-outline {
  background-color: transparent;
  border: 2px solid white;
  color: white;
}

.btn-outline:hover {
  background-color: white;
  color: hsl(var(--primary));
}

.btn-hero {
  background: linear-gradient(135deg, hsl(var(--secondary)), hsl(var(--secondary-light)));
  color: white;
  padding: 1rem 2rem;
  font-size: 1.125rem;
  box-shadow: 0 10px 30px -10px hsl(var(--secondary) / 0.5);
}

.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px -10px hsl(var(--secondary) / 0.6);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Spacing */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2 { padding-top: 1rem; padding-bottom: 1rem; }
.py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-4 { padding-top: 2rem; padding-bottom: 2rem; }

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

/* ==========================================================================
   11. Animations
   ========================================================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

.animate-slide-up {
  animation: slideUp 0.5s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.3s ease-out forwards;
}

/* ==========================================================================
   12. Responsive Styles
   ========================================================================== */

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-grid,
  .contact-grid,
  .admission-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .why-us-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  
  .section {
    padding: 3rem 0;
  }
  
  /* Navigation */
  .nav-menu,
  .nav-cta {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  /* Hero */
  .hero {
    min-height: 500px;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  /* Grids */
  .grid-2,
  .grid-3,
  .grid-4,
  .classes-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .why-us-grid {
    grid-template-columns: 1fr;
  }
  
  .about-values {
    grid-template-columns: 1fr;
  }
  
  .about-images {
    grid-template-columns: 1fr;
  }
  
  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: left;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .top-header .container {
    justify-content: center;
  }
  
  .top-header-contact {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .top-header-social {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 0.75rem;
  }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .btn {
    width: 100%;
  }
  
  .page-header {
    padding: 3rem 0;
  }
}